Zobrazeno 1 - 10
of 4 641
pro vyhledávání: '"Dicke model"'
We analytically find quantitative, non-perturbative bounds to the validity of the rotating-wave approximation (RWA) for the multi-atom generalization of the quantum Rabi model: the Dicke model. Precisely, we bound the norm of the difference between t
Externí odkaz:
http://arxiv.org/abs/2410.18694
Ground state of the gauge invariant Dicke model: condensation of the photons in non-classical states
We investigate the ground state of two physically motivated modifications of the Dicke model. The first modification corresponds to particles whose phase space contains only two states, for example, particles with spin 1/2 or artificially created qub
Externí odkaz:
http://arxiv.org/abs/2409.02701
Autor:
Herrera Romero, Ricardo1 (AUTHOR), Bastarrachea-Magnani, Miguel Angel1 (AUTHOR) bastarrachea@xanum.uam.mx
Publikováno v:
Entropy. Jul2024, Vol. 26 Issue 7, p574. 23p.
Phase and amplitude modes are emergent phenomena that manifest across diverse physical systems, from condensed matter and particle physics to quantum optics. Also called polariton modes, we study their behavior in an anisotropic Dicke model that incl
Externí odkaz:
http://arxiv.org/abs/2406.09446
We investigate the quantum phase transition in the anisotropic Dicke model through an examination of the quantum geometric tensor of the ground state. In this analysis, two distinct classical limits exhibit their unique anisotropic characteristics. T
Externí odkaz:
http://arxiv.org/abs/2406.06301
We investigate the discrete time crystal (DTC) phase in a qubit ensemble, periodically driven by its interaction with either a photon or a transmon field, which is prone to dissipative leakage. We find this DTC to be robust against changes in detunin
Externí odkaz:
http://arxiv.org/abs/2407.05171
The analysis of correlations among subsystems is essential for both the understanding of critical phenomena and for performing quantum information tasks. However, the majority of correlation measures are restricted to bipartitions due to the inherent
Externí odkaz:
http://arxiv.org/abs/2405.12916
Publikováno v:
Phys. Rev. Research 6, 033181 (2024)
The Dicke model describes an ensemble of two-level atoms that are coupled to a confined light mode of an optical cavity. Above a critical coupling, the cavity becomes macroscopically occupied, and the system enters the superradiant phase. This phase
Externí odkaz:
http://arxiv.org/abs/2405.13276
Autor:
Adiv, Ofri, Parkins, Scott
The Dicke model is a staple of theoretical cavity Quantum Electrodynamics (cavity QED), describing the interaction between an ensemble of atoms and a single radiation mode of an optical cavity. It has been studied both quantum mechanically and semicl
Externí odkaz:
http://arxiv.org/abs/2403.01716
Autor:
Villaseñor, David, Pilatowsky-Cameo, Saúl, Chávez-Carlos, Jorge, Bastarrachea-Magnani, Miguel A., Lerma-Hernández, Sergio, Santos, Lea F., Hirsch, Jorge G.
This review article describes major advances associated with the Dicke model, starting in the 1950s when it was introduced to explain the transition from a normal to a superradiant phase. Since then, this spin-boson interacting model has raised signi
Externí odkaz:
http://arxiv.org/abs/2405.20381